Suggestions for a good ab workout for women

Michael asks…bored...are walk at home workouts for men or women?read above?Jack answers:NO, THEY'RE WORK OUTS FOR TREES. WHAT DO U THINK!?
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........!(@)'(@)""""**!(@)(@)****!(@) -|-Maria asks…Am wanting suggestions for a good ab workout for this middleaged woman. Something I can do at home?I have been riding my mt. bike consistanly

good ab workout